A section of an Interstate Highway bridge over the Skagit River in Mount Vernon, Wash., collapsed Thursday evening, sending vehicles into the water from which three motorists were rescued, state officials said.

There were no fatalities reported at the scene, about 60 miles north of Seattle, said Marcus Deyerin, the public affairs officer for the five-county incident-management team that responded to the collapse.

News of the bridge collapse is likely to spur more calls for a major boost in infrastructure spending.